Immortality of Stem cells is supported by the expression of telomerase that can extend the telomere sequence. However, one daughter cell created by division of stem cells will not be immortal due to lack of telomerase expression. What difference will you expect in regulation of the telomerase coding gene between the two daughter cells produced by cell division of stem cells? How might the cells be different in terms of chromatin structure at that loci?

Q: You add a chemical to a cell that prevents all of the chromatin from uncoiling so that the…

A: Transcription is the process of formation of messenger RNA using DNA as a template and DNA dependent…

Q: Define chromatin-mediated repression.

A: Histone is the basic protein abundant in lysine and arginine residues, which are located in the…

Q: Explain the role of boundary elements in the DNA. If you were to use gene editing technology to…

A: Detailed explanation: Let's break down the role of boundary elements in DNA and explore the…

Q: Telomerase is an attractive cancer target since 85% - 90% of tumors express telomerase (while normal…

A: Cancer is a fatal disease that has both physical and mental consequences for a person. Cancer can…

Q: The data below are from a DNAse-Seq experiment of chromosome 22. DNAse-seq is another method for…

A: The DNAse-Seq experiment is a method used to analyze chromatin organization by digesting regions of…

Q: Which of the following statements is NOT true about chromatin architecture? A. The histone tails on…

A: The DNA is the genetic material of the cell which is responsible for the functions a cell performs.…

Q: Which of the following statements most accurately represent chromatin state and transcription?

A: A quality is the fundamental physical and functional unit of heredity. Genes are comprised of DNA. A…

Q: What has happened to the chromatin in the diagram? What regulatory proteins binds to what part of…

A: DNA is a double helical structure, which is wrapped around histones.  histones are proteins found in…

Q: In chemotherapy, what are the mechanism of action of cisplatin and alkylating agents.  Why are these…

A: Chemotherapy is a medication treatment that employs the use of potent chemicals to kill rapidly…

Q: A gene product of unknown function was subjected to both two hybrid analysis and BioID. In the two…

A: Two-hybrid analysis is a molecular biology technique used to discover protein-protein interactions…

Q: You have discovered a new species of plant. You isolate chromatin from the plant and examines it…

A: Histones are basic proteins that are rich in basic amino acids like arginine and lysine. These basic…

Q: Match the type of chromatin modification with the most likely effect on gene expression near the…

A: DNA and histone proteins, which are essential elements of the chromatin structure, are chemically…

Q: In eukaryotes which of the following combination of chromatin conditions would be most likely to…

A: Eukaryotes are organisms whose cells have a nucleus enclosed within a nuclear membrane.Eukaryotes…

Q: What are different types of modifications seen on histones in heterochromatin and euchromatin and…

A: Histones are specialized proteins around which DNA wraps and forms a structure known as the…

Q: If telomeres are normally shortened after each round of replication in somatic cells (see Chapter…

A: Cloning is the creation of identical biological entities for therapeutic and reproduction. It is…

Q: Describe the action of telomerase and identify the celltypes in which it continues to be…

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of…

Q: Eukaryotic life also uses chromatin modifications to turn transcripts on and off. We talked about…

A: Chromosomes are the thread-like structures that consists of DNA in tightly packed manner within the…

Q: Which of the following is NOT an effect of histone acetylation on chromatin structure? Selected…

A: Histone acetylation is a post-translational modification that adds acetyl groups to lysine residues…

Q: In studies on chromatin it has been reported that DNA that is being actively transcribed is more…

A: DNA- “deoxyribonucleic acid” is a complex structure that carries the unique genetic code of every…

Q: The E. coli genome contains approximately 4639 kb. (a) How many copies of the 6-bp recognition…

A: E.coli is a type of bacteria that normally lives in the intestine. It is also found in the gut of…

Q: What does the statement above mean

A:

Q: Which of the following is likely to be transcriptionally expressed?     euchromatin and DNA with…

A: Introduction: Two main stages are there at which gene is expressed: transcription and translation.…

Q: In somatic cell nuclear transfer, the nucleus of a somatic cell is inserted into an enucleated egg.…

A: A somatic cell nucleus refers to a cell whose nucleus has a diploid set of chromosomes which means…

Q: Telomere shorting is related to aging. Telomerase can extend telomeres. Why do we not just figure…

A: ANSWER: Despite the fact that telomerase has been related to the protection of cancer, studies have…

Q: How would you use a ChIP (chromatin immunoprecipitation) to show that when RNA pol II is bound at…

A: Chromatin immunoprecipitation is a technique used for the investigation of DNA (deoxyribonucleic…

Q: fill in the blank When the cell goes from M to GI, the number of nucleosomes on this stretch of DNA…

A: The cell cycle is a cyclic process where new cells are formed, increase in size, and enters…

Q: import processes of histones which are synthesized in the cytosol but function in the nucleus to…

A: Replication and Transcription Replication is a process in which DNA makes copies of itself to ensure…

Q: Histones can be modified to turn genes on and off. Which type of chromatin is associated with…

A: Chromatin is a complex form of DNA  molecule and  Histone protein which was found in eukaryotic…

Q: asic amino acids including lysine. DNA and histones collectively form chromatin. Open open and…

A: Histones can be defined as the family of basic proteins that are associated with the DNA in the…

Q: n yeast cells, telomerase remains active and maintains telomeres of about 300 base pairs. Propose…

A: Deletion is a type of mutation in the DNA (deoxyribonucleic acid) that…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.